package com.jk.utile;

/**
 * 消息队列配置文件类
 *
 * @author 李卓
 * @create 2017-12-22 19:56
 **/

import org.springframework.amqp.core.AcknowledgeMode;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.DirectExchange;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.ChannelAwareMessageListener;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;

import com.rabbitmq.client.Channel;

/**
 * Qmqp Rabbitmq
 *
 * http://docs.spring.io/spring-amqp/docs/1.4.5.RELEASE/reference/html/
 *
 * @author lkl
 * @version $Id: AmqpConfig.java, v 0.1 2015年11月01日 下午2:05:37 lkl Exp $
 */

@Configuration
public class AmqpConfig {
    /*
     @Configuration可理解为用spring的时候xml里面的<beans>标签
     @Bean可理解为用spring的时候xml里面的<bean>标签
     */
    public static final String EXCHANGE   = "spring-boot-exchange";
    public static final String ROUTINGKEY = "spring-boot-routingKey";

    @Bean
    public ConnectionFactory connectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
        connectionFactory.setAddresses("192.168.1.164:5672");
        connectionFactory.setUsername("admin");
        connectionFactory.setPassword("admin");
        connectionFactory.setVirtualHost("/");
        connectionFactory.setPublisherConfirms(true); //设置 消息回调 如果业务不需要发送消息确认机制，这句话可直接设置为false
        return connectionFactory;
    }

    @Bean
    @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
    //有不同的回调机制的情况下才设置为原型（也就是多例），如果你的业务就一种回调机制，是可以设置为单例的。
    public RabbitTemplate rabbitTemplate() {
	  /*通过使用RabbitTemplate来对生产者提供API操作*/
        RabbitTemplate template = new RabbitTemplate(connectionFactory());
        return template;
    }

    /**
     * 针对消费者配置
     * 1. 设置交换机类型
     * 2. 将队列绑定到交换机
     *
     *
     FanoutExchange: 将消息分发到所有的绑定队列，无routingkey的概念
     HeadersExchange ：通过添加属性key-value匹配
     DirectExchange:按照routingkey分发到指定队列
     TopicExchange:多关键字匹配
     */
    /*
    @Bean
    public DirectExchange defaultExchange() {
        return new DirectExchange(EXCHANGE);
    }

    @Bean
    public Queue queue() {
        return new Queue("spring-boot-queue", true); //设置队列持久 化

    }

    @Bean
    public Binding binding() {
        return BindingBuilder.bind(queue()).to(defaultExchange()).with(AmqpConfig.ROUTINGKEY);
    }

@Bean
  public SimpleMessageListenerContainer messageContainer() {
      SimpleMessageListenerContainer container = new SimpleMessageListenerContainer(connectionFactory());
      container.setQueues(queue());
      container.setExposeListenerChannel(true);
      container.setMaxConcurrentConsumers(1);
      container.setConcurrentConsumers(1);
      container.setAcknowledgeMode(AcknowledgeMode.MANUAL); //设置确认模式手工确认
      container.setMessageListener(new ChannelAwareMessageListener() {


          public void onMessage(Message message, Channel channel) throws Exception {
              //*byte[] body = message.getBody();
              System.out.println( message.getBody().toString());
              channel.basicAck(message.getMessageProperties().getDeliveryTag(), false); //确认消息成功消费
          }
      });
      return container;
  }*/

}
